Weather Records on 21 August 1969

650 weather records were set or tied worldwide on 21 August 1969. Highest significance: Osage City, US.

Key Facts for 21 August 1969

On 21 August 1969, 650 weather records were set or tied at long-record stations worldwide.
368 were record highs and 113 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 9 monthly and 638 daily.
Osage City set a daily record precipitation of 131.6 mm (5.2 in) on 21 August 1969.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 449 records.

Record Map

650 stations

650 station records on 21 August 1969 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1969: highest significance records shown on the map
Station	Country	Type	Value	Significance
Osage City	United States	Record daily precipitation	131.6 mm (5.2 in)	64 of 100 (Major)
Godegard	Sweden	Record daily precipitation	42.2 mm (1.7 in)	59 of 100 (Notable)
Teziutlan	Mexico	Record daily precipitation	162.3 mm (6.4 in)	56 of 100 (Notable)
Charlottesville 1 W	United States	Record daily precipitation	121.9 mm (4.8 in)	55 of 100 (Notable)
Peapalli(Pyapali)	India	Record daily precipitation	109.2 mm (4.3 in)	49 of 100 (Notable)
Orebro	Sweden	Record daily precipitation	43.3 mm (1.7 in)	49 of 100 (Notable)
Kamalapuram	India	Record daily precipitation	116.8 mm (4.6 in)	48 of 100 (Notable)
Olney 2S	United States	Record daily precipitation	78.2 mm (3.1 in)	48 of 100 (Notable)
Tlachichuca	Mexico	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
Houston	United States	Record daily precipitation	64.0 mm (2.5 in)	46 of 100 (Notable)
Halifax Macrossan St	Australia	Record daily precipitation	25.9 mm (1.0 in)	42 of 100 (Notable)
Hanamkonda	India	Record daily precipitation	67.0 mm (2.6 in)	42 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Olands Sodra Udde	Sweden	Record daily precipitation	33.5 mm (1.3 in)	39 of 100 (Notable)
Sattur	India	Record daily precipitation	43.0 mm (1.7 in)	38 of 100 (Notable)
Byron Bay (Jacaranda Drive)	Australia	Record daily precipitation	83.3 mm (3.3 in)	37 of 100 (Notable)
Gudur(Guduru)	India	Record daily precipitation	59.6 mm (2.3 in)	36 of 100 (Notable)
Atmakur	India	Record daily precipitation	81.4 mm (3.2 in)	36 of 100 (Notable)
Stromsfoss Sluse	Norway	Record daily precipitation	37.5 mm (1.5 in)	36 of 100 (Notable)
Mt Carmel 4 NW	United States	Record daily precipitation	57.7 mm (2.3 in)	36 of 100 (Notable)
Grenfell	Canada	Record high minimum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Mecca Fire STN	United States	Record high maximum temperature	48.9 C (120.0 F)	35 of 100 (Notable)
Carthage	United States	Record daily precipitation	48.5 mm (1.9 in)	35 of 100 (Notable)
Broadwater Sugar Mill	Australia	Record daily precipitation	62.5 mm (2.5 in)	34 of 100 (Routine)
Charleston	United States	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Dickson	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Portage Wwtp	United States	Record low minimum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Woodburn Post Office	Australia	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Dhone	India	Record daily precipitation	81.0 mm (3.2 in)	32 of 100 (Routine)
Orje	Norway	Record daily precipitation	32.8 mm (1.3 in)	32 of 100 (Routine)
Riggins	United States	Record high maximum temperature	41.7 C (107.1 F)	32 of 100 (Routine)
Griggsville	United States	Record daily precipitation	47.0 mm (1.9 in)	32 of 100 (Routine)
Marshfield 4 WSW	United States	Record daily precipitation	53.8 mm (2.1 in)	32 of 100 (Routine)
Yamba Pilot Station	Australia	Record daily precipitation	35.6 mm (1.4 in)	31 of 100 (Routine)
Banff	Canada	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Litchfield Park	United States	Record high maximum temperature	47.2 C (117.0 F)	31 of 100 (Routine)
Belle Glade	United States	Record low minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Ft Benton	United States	Record high maximum temperature	36.7 C (98.1 F)	31 of 100 (Routine)
Hay Springs	United States	Record high minimum temperature	19.4 C (66.9 F)	31 of 100 (Routine)
Green Bay	United States	Record low minimum temperature	7.2 C (45.0 F)	31 of 100 (Routine)
Langara	Canada	Record low minimum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Raichur	India	Record daily precipitation	87.0 mm (3.4 in)	30 of 100 (Routine)
Siljansfors	Sweden	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Winkelman 6 S	United States	Record high maximum temperature	42.2 C (108.0 F)	30 of 100 (Routine)
Cairo 1SW	United States	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Kalispell Glacier AP	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Canton 4 SE	United States	Record low minimum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Peterboro 2 S	United States	Record low minimum temperature	3.9 C (39.0 F)	29 of 100 (Routine)
Mission 4 W	United States	Record daily precipitation	53.3 mm (2.1 in)	29 of 100 (Routine)
Cypress River	Canada	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
Arteaga	Mexico	Record daily precipitation	59.4 mm (2.3 in)	28 of 100 (Routine)
Petaluma AP	United States	Record high maximum temperature	36.1 C (97.0 F)	28 of 100 (Routine)
Bastrop	United States	Record daily precipitation	57.9 mm (2.3 in)	28 of 100 (Routine)
Poplar 2 E	United States	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Grafton	United States	Record low minimum temperature	0.0 C (32.0 F)	28 of 100 (Routine)
Klintonel	Canada	Record high maximum temperature	33.9 C (93.0 F)	27 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record daily precipitation	56.9 mm (2.2 in)	27 of 100 (Routine)
Parma	United States	Record daily precipitation	45.0 mm (1.8 in)	27 of 100 (Routine)
Brady Aznoe	United States	Record high maximum temperature	37.2 C (99.0 F)	27 of 100 (Routine)
Red Lodge	United States	Record high maximum temperature	32.8 C (91.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

650 records

Records set or tied on 21 August 1969 by type: Highest daily maximum 286, Lowest daily maximum 43, Highest daily minimum 82, Lowest daily minimum 70, Heaviest daily rainfall 169.

Records on 21 August 1969 by type
Record type	Records
Highest daily maximum	286
Lowest daily maximum	43
Highest daily minimum	82
Lowest daily minimum	70
Heaviest daily rainfall	169
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1969 by timescale: all-time 3, monthly 9, daily 638.

How Much Records Were Beaten By

483 broken records

Margins by which the 483 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 96.2. Ties are not counted.

Top 20 by Significance

21 August 1969

Top 20 records on 21 August 1969 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1969	Osage City, US	daily rain	131.6 mm (5.2 in)	82.1 mm (3.2 in)	58 years	64 of 100 (Major)
21 August 1969	Godegard, SE	daily rain	42.2 mm (1.7 in)	23.4 mm (0.9 in)	66 years	59 of 100 (Notable)
21 August 1969	Teziutlan, MX	daily rain	162.3 mm (6.4 in)	92.4 mm (3.6 in)	40 years	56 of 100 (Notable)
21 August 1969	Charlottesville 1 W, US	daily rain	121.9 mm (4.8 in)	96.2 mm (3.8 in)	38 years	55 of 100 (Notable)
21 August 1969	Peapalli(Pyapali), IN	daily rain	109.2 mm (4.3 in)	32.5 mm (1.3 in)	64 years	49 of 100 (Notable)
21 August 1969	Orebro, SE	daily rain	43.3 mm (1.7 in)	16.5 mm (0.6 in)	56 years	49 of 100 (Notable)
21 August 1969	Kamalapuram, IN	daily rain	116.8 mm (4.6 in)	41.9 mm (1.6 in)	56 years	48 of 100 (Notable)
21 August 1969	Olney 2S, US	daily rain	78.2 mm (3.1 in)	35.5 mm (1.4 in)	54 years	48 of 100 (Notable)
21 August 1969	Tlachichuca, MX	daily rain	47.0 mm (1.9 in)	32.0 mm (1.3 in)	28 years	47 of 100 (Notable)
21 August 1969	Houston, US	daily rain	64.0 mm (2.5 in)	32.0 mm (1.3 in)	56 years	46 of 100 (Notable)
21 August 1969	Halifax Macrossan St, AU	daily rain	25.9 mm (1.0 in)	19.3 mm (0.8 in)	51 years	42 of 100 (Notable)
21 August 1969	Hanamkonda, IN	daily rain	67.0 mm (2.6 in)	30.9 mm (1.2 in)	59 years	42 of 100 (Notable)
21 August 1969	1 WSW Princeton, US	daily rain	50.8 mm (2.0 in)	25.4 mm (1.0 in)	72 years	41 of 100 (Notable)
21 August 1969	Olands Sodra Udde, SE	daily rain	33.5 mm (1.3 in)	12.6 mm (0.5 in)	40 years	39 of 100 (Notable)
21 August 1969	Sattur, IN	daily rain	43.0 mm (1.7 in)	18.4 mm (0.7 in)	64 years	38 of 100 (Notable)
21 August 1969	Byron Bay (Jacaranda Drive), AU	daily rain	83.3 mm (3.3 in)	20.6 mm (0.8 in)	68 years	37 of 100 (Notable)
21 August 1969	Gudur(Guduru), IN	daily rain	59.6 mm (2.3 in)	26.1 mm (1.0 in)	40 years	36 of 100 (Notable)
21 August 1969	Atmakur, IN	monthly rain	81.4 mm (3.2 in)	11.8 mm (0.5 in)	36 years	36 of 100 (Notable)
21 August 1969	Stromsfoss Sluse, NO	daily rain	37.5 mm (1.5 in)	17.3 mm (0.7 in)	24 years	36 of 100 (Notable)
21 August 1969	Mt Carmel 4 NW, US	daily rain	57.7 mm (2.3 in)	27.0 mm (1.1 in)	38 years	36 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1800 to 1969

Records set or tied on this calendar date in each year from 1800 to 1969. 1969 had 650 records.

Counts for years before the ledger starts come from the same station rules.

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1969-08-21: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	442
20 to 40	37
40 to 60	1
60 to 80	0
80 to 100	3